Kantian Ethics

In this video on Kant's ethics, the ideal life is based on using reason to determine what one's duty is in any given context. Always acting from duty means following specific rules that are universal, that apply to anyone in a similar situation, and that are aligned with ceteris parabis rules in law. If one follows these rules and always acts from duty, then one is a Good Will, who always intends to do the right thing, with the right intentions and motivations.